So, I finally finished Jonathan Strange and Mr. Norrell and quite awhile ago, too. (I've been sidelined due to an injury.) I found the book enjoyable and I did like "getting lost" in the world or Strange and Norrell. Susanna Clarke is certainly a very imaginative writer, but the book wasn't without problems.
Jonathan Strange and Mr. Norrell suffers from a lack of focus. There is no throughline, no dramatic question to answer, and there's far too little interaction and conflict between Strange and Norrell. I have, however, purchased Clarke's book of short stories, The Ladies of Grace Adieu and I will probably read the novel she publishes next.
So...foreward! More books await!